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How to perform Unwind segue programmatically?
Using storyboard this is very easy. You just drag the action to "Exit". But how should I call it from my code?
10 Answers
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How do you close/hide the Android soft keyboard using Java?
I have an EditText and a Button in my layout.
108 Answers
108
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Read a file line by line assigning the value to a variable
... echo "Text read from file: $line"
done < "$1"
If the above is saved to a script with filename readfile, it can be run as follows:
chmod +x readfile
./readfile filename.txt
If the file isn’t a standard POSIX text file (= not terminated by a newline character), the loop can be modified to ...
iOS Safari – How to disable overscroll but allow scrollable divs to scroll normally?
I'm working on an iPad-based web app, and need to prevent overscrolling so that it seems less like a web page. I'm currently using this to freeze the viewport and disable overscroll:
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How to parse a date? [duplicate]
I am trying to parse this date with SimpleDateFormat and it is not working:
5 Answers
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What is the difference between Trap and Interrupt?
...used by division by zero or invalid memory access. It's also the usual way to invoke a kernel routine (a system call) because those run with a higher priority than user code. Handling is synchronous (so the user code is suspended and continues afterwards). In a sense they are "active" - most of the ...
Conditional Variable vs Semaphore
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Locks are used for mutual exclusion. When you want to ensure that a piece of code is atomic, put a lock around it. You could theoretically use a binary semaphore to do this, but that's a special case.
Semaphores and condition variables build on top of the mutual exclusion p...
Direct casting vs 'as' operator?
...1
Throws InvalidCastException if o is not a string. Otherwise, assigns o to s, even if o is null.
string s = o as string; // 2
Assigns null to s if o is not a string or if o is null. For this reason, you cannot use it with value types (the operator could never return null in that case). Otherwi...
How to map and remove nil values in Ruby
I have a map which either changes a value or sets it to nil. I then want to remove the nil entries from the list. The list doesn't need to be kept.
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Sync data between Android App and webserver [closed]
I want to sync data (such as db record, media) between an Android App and a Server. If you've seen Evernote or similar Applications, you certainly understand what I mean.
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